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+---
+title: formatNumber
+tags: string,math,beginner
+---
+
+Returns a number using the local number format order.
+
+Use `Number.prototype.toLocaleString()` to convert a number to using the local number format separators.
+
+```js
+const formatNumber = num => num.toLocaleString();
+```
+
+```js
+formatNumber(123456); // '123,456' in `en-US`
+formatNumber(15675436903); // '15.675.436.903' in `de-DE`
+```